To rock the boat

If you rock the boat you change a happy situation to an unhappy one. If something floats your boat it means you like it and it interests you. A boathouse is simply where you keep your boat.

Examples

“All the houses in our road are white and the new neighbours are going to rock the boat if they paint their house pink!”

“I really don’t like classical music. It doesn’t float my boat.”

“It took three coats of paint to paint our new boathouse blue.”